Fiber Optic Laryngoscope Handles contains knurled finish for secure grip. Uses patented HPX technology with a blend of pressurized xenon and halogen gases to produce intense bright, white light for a true tissue color and long lasting illumination. The new design is up to 40% lighter than its predecessor that ensures easy maneuvering and responsiveness. 2.5 V handles of all sizes uses the cartridge design of single HPX lamp.